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-   -   Dennis Had Inspire Amps (https://www.audioaficionado.org/showthread.php?t=24170)

bearcity 11-17-2021 07:44 PM

Quote:

Originally Posted by FloridaBoy (Post 1048907)
Got a slow-blow and all is well. Thanks gents the 2030 is an amazing preamp.



It's the end game for me.:thumbsup:



Yeh, I think that often,… then there is that itch.

FloridaBoy 11-18-2021 09:17 AM

Quote:

Originally Posted by bearcity (Post 1048976)
Yeh, I think that often,… then there is that itch.

Yeah, the itch. It's mainly psychological. The biggest improvement I can make is room treatment. :thumbsup:

DRHamp 11-21-2021 01:13 PM

This may be a totally bad idea, but thought I'd solicit opinions. Balancing volume levels across multiple streamed recordings in a playlist is a pita. Could a passive preamp with remote volume/attenuation be placed in the chain without significant impact on the sound quality?
The chain is Denefrips Pontus DAC to LP-2030 Preamp to Inspire KT88 SEP.
If it's not a totally bad idea, where would it go in the chain - between the DAC and LP-2030, or between the LP-2030 and the amp?

DRHamp 12-13-2021 09:10 AM

Anyone know the input impedence of the LP-2030 preamp?

bearcity 12-13-2021 11:36 AM

Quote:

Originally Posted by DRHamp (Post 1050829)
Anyone know the input impedence of the LP-2030 preamp?

From Dennis, "Oh, there is a fellow inquiring the impedance of the LP-2030 … The input impedance of the LP-2030 is 57K and the output impedance is 3.3K. The LP-2030 will drive into as low as 10K loads at full frequency response."

DRHamp 12-13-2021 11:49 AM

@bearcity, thank you very much for that info.

cade12 12-20-2021 10:11 AM

I know this is borderline blasphemy, but…

I have a lead on a used 2030 preamp that I would like to jump on. However, my speakers are relatively inefficient, so I’ll most likely need to use a SS amp that has a little grunt. That being said, what kind of specs do I need to be looking for as far as what might work well with the pre? From what I read, it’s pretty flexible and should drive most anything.

Thanks in advance.

Oly84 12-28-2021 09:37 PM

Are there WE tubes that will work in the 2030 pre and what would the model numbers be?
Thanks.

DRHamp 12-30-2021 08:42 AM

Quote:

Originally Posted by Oly84 (Post 1051985)
Are there WE tubes that will work in the 2030 pre and what would the model numbers be?
Thanks.

Other than the voltage regulators and the rectifier, the LP-2030 uses 01A, 12A, and 71A and their variants. There were some Western Electric RCA 01As made and there could be others.

Oly84 12-30-2021 02:01 PM

Thanks for the reply. As a 6V6’er owner I am wondering if someone who knows their tube combinations would be willing to throw together a simple chart showing which rectifier and driver tubes can or should be used with a certain power tube pair. Currently running VT170’s with a 5AR4 and a 6SL7GT all TUNGSOL. Ready to try tube rolling but not sure what to pair up. Thanks in advance for any help you all can provide.


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